Home / 18,857.34-28,294.20-7,173.90

Finding the Fourth Proportional to 18,857.34, 28,294.20 and 7,173.90

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Solution

The fourth proportional to 18,857.34, 28,294.20 and 7,173.90 is: 10,763.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.34 : 28,294.20 = 7,173.90 : x
  2. Step 2: Convert to fraction form
    18,857.34/28,294.20 = 7,173.90/x
  3. Step 3: Cross multiply
    18,857.34x = 28,294.20 × 7,173.90
  4. Step 4: Simplify right side
    18,857.34x = 202,979,761.38
  5. Step 5: Solve for x
    x = 202,979,761.38/18,857.34
  6. Step 6: Final answer
    x = 10,763.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.